SA 3 



5 to 9 folh 



10 10 19 folh 



20 10 50 folh 



JAN. - FEB MAR - APR MAY - JUN, 



JUL - AUG SEP - OCT. NOV - DEC. 



O 



BIMONTHLY WIND VECTORS 



Figure 4.— Bimonthly mean difference between surface and bottom wat er temperatures and associated wind roses west of the Mississippi River 

 Delta (SA3). Wind roses: Arrows fly with the wind based on eight points of the compass. Each wind rose indicates the average wind speed at the 

 end of the arrow, percent frequency at center of arrow, and percentage of calm or light winds are encircled. 



